Transition Metals and Coordination Compounds- Oxidation States of Vanadium

Oxidation States of Vanadium

Description: Yellow vanadium (VI) is swirled with Jones Reductor and will progressively change color until it reaches the violet vanadium (II). Vanadium (II) is oxidized through a series of colors by permanganate to a final yellow color.

Source: UW Card Catalog

Year: N/A Vol: N/A Page: N/A

Keywords: Oxidation states, Jones Reductor, Vanadium (II), Permanganate

Ratings:

Hazard: High

• Corrosive to metals
• Skin corrosion hazard
• Serious eye damage
• Acute toxicity hazard – oral, inhalation, dermal
• Aquatic toxicity hazard
• Specific organ toxicity repeated exposure – respiratory tract
• Oxidizing liquids
• Carcinogenicity hazard

Effectiveness: Good

• Good connection from demo to course material
• Results are clearly observable without guidance
• Time to results is low
• Reliability is good
• Mild effects are seen by audience

Difficulty: Medium

• Consecutive manipulations and transfer
• Training or practice recommended
• Manipulations are simple for most to perform
• Attention to detail is required
• Some intermediate steps to results

Safety Precautions:

• Eye protection required
• Gloves required
• Use of chemically inert surface
• Absorbent material on hand
• Avoid exposures to mists, droplets, or vapors
• Perform in a well-ventilated area
• Prevent release of reagents to the environment

Class: Transition Metal Chemistry, Redox Reactions

Division: General, Inorganic Chemistry, Analytical Chemistry

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